WorksheetsMeasuring the speed of water waves from distance and time | Starter Quiz | Oak National Academy
Total questions: 6
Worksheet time: 5mins
Match the following quantities to their units.
metres (m)
distance
seconds (s)
time
metres per second (m/s)
speed
Which of the following is the correct equation for speed?
speed = distance x time
speed = distance + time
speed = distance – time
speed = distance ÷ time
Which of the following is not a unit of speed?
metres per second (m/s)
metres per second squared (m/s²)
kilometres per second (km/s)
miles per hour (mph)
Sam take three repeat measurements for the time taken for a wave to travel a set distance. The results are 0.21 s, 0.19 s and 0.26 s. Calculate the mean time. You do not need to include the units.
(a)
What effect do random errors have on repeat readings?
Random errors make repeat readings identical.
Random errors make repeat readings slightly different to each other.
Random errors make repeat readings more accurate.
Random errors make all repeat readings inaccurate by the same amount.
The uncertainty in a measured value refers to ...
the accuracy of the result.
the validity of the result.
the amount of doubt about the result.
the amount of certainty about the result
